Cho mạch dao động xung trên UJT như Hình 1. a) Mô tả chức năng các linh kiện trong mạch b) Phân tích hoạt động của mạch và vẽ giãn đồ sóng tại và chân: VE; VB1; VB2. c) Tính chu kỳ và tần số dao động xung lối ra VB1

Usually, when we sniff packets, we are only interested certain types of packets. we can do that by setting filters in sniffing. scapy’s filter use the bpf (berkeley packet filter) syntax; you can find the bpf manual from the internet. set the following filters and demonstrate your sniffer program again (each filter should be set separately): (a) capture only the icmp packet. (b) capture any tcp packet that comes from a particular ip and with a destination port number 23. (c) capture packets comes from or to go to a particular subnet. you can pick any subnet, such as 128.230.0.0/16; you should not pick the subnet that your vm is attached to.

Is a type of bullying that takes place when a person intentionally posts negative information about another person that is not true.

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication